ALISMACE/E NAIADACE/E. 139 



A. ranunculoides, Linn (Echinodorus ranunculoides^ Engelm) . 



3. Marsh, Par, 191 1 , Druce, Journ. Bot., 1911, p. 302. 



7. Pond near Penhale, Lizard road, 1914, Thurston, Near 



Lowland Point, Coverack; Kynance, Rev. H. E. Fox, R./.C., 



1911, p. 388. 



* Forma graminifolius, Gliick. 



6. Mabe Reservoir, 1911, Davey, R./.C., 79/3, p 229. 



Professor Gliick examined the specimens, and pronounced them 

 Echinodorus ranunculoides (L), Engelmann, forma gramini- 

 folius, Gliick -Alisma ranunculoides , L, /. graminifolius. 



"Sagittaria sagittifolia, Linn. Native? 



3. Landividdy Hill, Lansallos. A single plant by a secluded 



spring growing out of the dripping moss on the bank of a 



runnel, 1918, Rilstone, B.E.C., 1918, p. 403. 



NAIADACE/E. 



Triglochin maritimum, Linn. 



2. Salt-marsh, Shillingham, Hawk, R./.C., /9//, p. 388. 



3. Par Sands, 1917, Miss A. B. Cobbe. 



6. Marsh, Ruan Lanihorne, 1913, Thurston. 



7. Gweek, 1914, Thurston. 



*Var. exangularc, Reichb. 



5. Penpoll Creek, Gannel, Vigurs, B.E.C., 1915, p. 284. 



Potamogeton natans, Linn. 



3. "Polperro, Couch" (Flora). Mr. Perrycoste confirms the 

 record. 



5. Pools among sandhills near Perranporth, Rilstone. 



6. Trevella, St. Erme; Trenerry Wood, St. Allen, Tresidder. 



P. perfoliatus, Linn. 



7. Lake, Helston town, 1916, Tresidder. 



P. CfiSpUS, Linn. 



1. Canal, Bude, 1915, Thurston. 



